CN203242415U - Low-delay compound-type data cable with waterproof performance - Google Patents
Low-delay compound-type data cable with waterproof performance Download PDFInfo
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- CN203242415U CN203242415U CN 201320163019 CN201320163019U CN203242415U CN 203242415 U CN203242415 U CN 203242415U CN 201320163019 CN201320163019 CN 201320163019 CN 201320163019 U CN201320163019 U CN 201320163019U CN 203242415 U CN203242415 U CN 203242415U
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Abstract
The utility model discloses a low-delay compound-type data cable with a waterproof performance. The low-delay compound-type data cable comprises a steel conductor, a coaxial conductor, eight copper conductive wires and an outer sheath body, wherein the eight copper conductive wires are stranded in pairs to form four stranded wire pairs used for information communication; the outer sheath body comprises a first sub-sheath, a second sub-sheath and a third sub-sheath, a herringbone connection part is arranged at the centres of the first sub-sheath, the second sub-sheath and the third sub-sheath, the first sub-sheath is coated on the outer surface of the steel conductor, the second sub-sheath is coated on the outer surface of a first inner sheath layer, and the third sub-sheath is coated on the outer surface of a second inner sheath layer; and a metal weaved layer and a copper wire weaved shielding layer are electrically connected via a plurality of metal conductive wires which are arrayed at intervals and in parallel, and located in the second sub-sheath, the third sub-sheath and the herringbone connection part. According to the low-delay compound-type data cable disclosed by the utility model, the crosstalk of a communication cable and the delay difference of an electric signal are further reduced, the power loss of the signal is avoided, and the power of the signal and the stability of performance are improved.
Description
Technical field
The utility model relates to a kind of telecommunication cable, relates in particular to a kind of compound data cable of low delay with water resistance.
Background technology
The structure of common single type telecommunication cable: its primary structure of the cable of pair twist structure is that copper conductor extrudes one deck insulation outward, stranding behind the single line pair twist, the structure of polyolefin oversheath is adopted in the outside, the coaxial cable primary structure is that inner wire extrudes outward or the insulation of wrapped one deck, then adopt aluminium foil or braiding as the structure of polyolefin behind the outer conductor as oversheath, because the said structure of telecommunication cable limitation, in exterior finish distributing system, automated detection system, cause that stretching is large, quality is unstable, the wiring is loaded down with trivial details, unreliable and affect serviceability.
Summary of the invention
The utility model provides a kind of compound data cable of low delay with water resistance, this low delay composite communication cable further reduces cross-talk and the signal of telecommunication delay inequality of the communications cable, and avoided the power loss of signal, improved the stability of signal power and performance.
For achieving the above object, the technical solution adopted in the utility model is: a kind of compound data cable of low delay with water resistance comprises: steel conductor, coaxial conductor, eight copper conductor and oversheath bodies that are coated with polyethylene layer; Described coaxial conductor outer surface is coated with plastic insulating layer, and this plastic insulating layer outer surface is coated with wire sheathing, and the first inner restrictive coating is coated on described wire sheathing outer surface;
Four pairs of in twos stranded formation of described eight copper conductors are as the twisted wire of information communication pair, described four twisted pair wire centerings the first twisted wire to, the second twisted wire to, the 3rd twisted wire to the 4th twisted wire to being arranged in order counterclockwise and stranded formation conduction cable core, the first twisted wire to the 3rd twisted wire pair and the second twisted wire to the 4th twisted wire to alternately, described four twisted pair wires all are coated with foil shielding layer to outer surface separately, one polyester belt is wrapped in described foil shielding layer outer surface, and the second inner restrictive coating is coated on described polyester belt outer surface;
Described oversheath body comprises the first sub-sheath, the second sub-sheath and the 3rd sub-sheath, this first sub-sheath, the second sub-sheath and the 3rd sub-sheath center have one " people " font connecting portion, the first muscle section of company, second of this " people " font connecting portion connects muscle section and the 3rd muscle section of company is connected to respectively the described first sub-sheath, the second sub-sheath and the 3rd sub-sheath, the first sub-sheath is coated on described steel conductor outer surface, the second sub-sheath is coated on described the first inner restrictive coating outer surface, and the 3rd sub-sheath is coated on described the second inner restrictive coating outer surface;
Described wire sheathing is electrically connected by some parallel plain conductors alternately that are positioned at the second sub-sheath, the 3rd sub-sheath and " people " font connecting portion with the proof copper-wire braided screen;
The right pitch of described the first twisted wire is 15~15.5mm, and the right pitch of described the second twisted wire is 13.5~13.9mm, and the right pitch of described the 3rd twisted wire is 14.2~14.6mm, and the right pitch of described the 4th twisted wire is 12.7~13.1mm;
Adjacent segments apart from design formula is:
The pitch design of being separated by formula is:
H1 is the right pitch of the first twisted wire, h2 be the second twisted wire to or the right pitch of the 4th twisted wire, h3 is the right pitch of the 3rd twisted wire.
Further improve technical scheme in the technique scheme as follows:
1, in the such scheme, the right pitch of described the first twisted wire is 15.2mm, and the right pitch of described the second twisted wire is 13.7mm, and the right pitch of described the 3rd twisted wire is 14.4mm, and the right pitch of described the 4th twisted wire is 12.9mm.
2, in the such scheme, described adjacent 2 plain conductors be spaced apart 2.4~3.7 times of conduction cable core twisting pitch.
3, in the such scheme, described four twisted pair wire strands form the conduction cable core, and this conduction cable core twisting pitch is that the 4th twisted wire is to 7.7~9.8 times of pitch.
4, in the such scheme, it is 120 ° that described the first muscle section of company, second connects the adjacent angle of muscle section and the first muscle section of company.
5, in the such scheme, described steel conductor and copper conductor be annealed PROCESS FOR TREATMENT all.
6, in the such scheme, described foil shielding layer is comprised of laminated polyester film and the aluminium foil layer that is positioned at its medial surface, and described polyester film layer thickness is 0.020 ± 0.002mm, and described aluminium foil layer thickness is 0.014 ± 0.002mm.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1, the utlity model has the compound data cable of low delay of water resistance, both effectively solved the circumstance complication of cable in work progress, for example the wiring of cable brings many inconvenience in the power supply-distribution system of machine room and the distribution system in the building, can produce certain electromagnetic field around during the cable operation, thereby the interference other system can cause the other problems such as equipment operation failure when serious; Avoided pulling cable, have preferably tensile strength and elongation, both guaranteed to satisfy the self-supporting ability of cable, also solved the problem of cable phase mutual interference in running simultaneously, guaranteed the long-term stability of transmission characteristic, but have again the advantages such as the convenient Reusability of emergency maintenance, have obvious economic benefit and promotional value, the test of material rising-heat contracting-cold in the time of standing variation of ambient temperature, therefore can prolong the useful life of cable, be difficult for being corroded long service life.
2, the utlity model has the compound data cable of low delay of water resistance, broken through traditional strand to line after the circular configuration of stranding, effectively improve the surplus of communication cable cross-talk (NEXT, FEXT) index 1%, even also improved the 1dB surplus of loss (INSERTION LOSS), increase by 1.5% stability of characteristic impedance (IMPEDANCE), when guaranteeing the stable transmission performance of cable, increased the performance of the transmission electricity of copper cable simultaneously.
3, the utlity model has the compound data cable of low delay of water resistance, adopt specific strand to become core pitch and strand that line is made up to string pitch collocation and the cable core that specifically conducts electricity, reduce transmission of electric signals and produced the electromagnetic induction impact in its loop, greatly reduce the cross-talk of the communications cable, wherein the electric field of capacitive sensing generation has both positive and negative polarity, can cancel each other after the adjacent two induction fields stack, reduce mutual capacitively coupled, take into account simultaneously other electric parameter, also avoided signal of telecommunication delay inequality to increase.
4, the utlity model has the compound data cable of low delay of water resistance, its wire sheathing is electrically connected by some parallel plain conductors alternately that are positioned at the second sub-sheath, the 3rd sub-sheath and " people " font connecting portion with the proof copper-wire braided screen, reduce cross-talk and the signal of telecommunication delay inequality of the communications cable, and avoided the power loss of signal, improved the stability of signal power and performance; Secondly, its wire sheathing is electrically connected by some parallel plain conductors alternately that are positioned at the second sub-sheath, the 3rd sub-sheath and " people " font connecting portion with the proof copper-wire braided screen, and described adjacent 2 plain conductors be spaced apart 2.4~3.7 times of conduction cable core twisting pitch, further reduce cross-talk and the signal of telecommunication delay inequality of the communications cable.
Description of drawings
Accompanying drawing 1 is for the utlity model has the compound data cable structural representation of low delay of water resistance.
In the above accompanying drawing: 1, steel conductor; 2, coaxial conductor; 3, copper conductor; 31, polyethylene layer; 4, oversheath body; 41, the first sub-sheath; 42, the second sub-sheath; 43, the 3rd sub-sheath; 5, plastic insulating layer; 6, wire sheathing; 7, the first inner restrictive coating; 8, conduction cable core; 81, the first twisted wire pair; 82, the second twisted wire pair; 83, the 3rd twisted wire pair; 84, the 4th twisted wire pair; 9, foil shielding layer; 10, polyester belt; 11, the second inner restrictive coating; 12, " people " font connecting portion; 121, first connects muscle section; 122, second connects muscle section; 123, the 3rd connects muscle section; 13, plain conductor; 14, proof copper-wire braided screen; 15, the packed layer that blocks water.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment 1: a kind of compound data cable of low delay with water resistance comprises: steel conductor 1, coaxial conductor 2, eight copper conductor 3 and oversheath bodies 4 that are coated with polyethylene layer 31; Described coaxial conductor 2 outer surfaces are coated with plastic insulating layer 5, and these plastic insulating layer 5 outer surfaces are coated with wire sheathing 6, the first inner restrictive coatings 7 and are coated on described wire sheathing 6 outer surfaces;
Four pairs of in twos stranded formation of described eight copper conductors 3 are as the twisted wire of information communication pair, described four twisted pair wire centerings the first twisted wire is arranged in order 84 the 83 and the 4th twisted wire and stranded formation conduction cable core 8 the 82, the 3rd twisted wire counterclockwise to the 81, second twisted wire, the first twisted wire to the 81 and the 3rd twisted wire to the 83 and second twisted wire to the 82 and the 4th twisted wire to 84 alternately, described four twisted pair wires all are coated with foil shielding layer 9 to outer surface separately, one polyester belt 10 is wrapped in described foil shielding layer 9 outer surfaces, and the second inner restrictive coating 11 is coated on described polyester belt 10 outer surfaces;
Described oversheath body 4 comprises the first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43, this first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43 centers have one " people " font connecting portion 12, first of this " people " font connecting portion 12 connects muscle section 121, the second muscle section 122 of company and the 3rd connects muscle section 123 and is connected respectively to the described first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43, the first sub-sheath 41 is coated on described steel conductor 1 outer surface, the second sub-sheath 42 is coated on described the first inner restrictive coating 7 outer surfaces, and the 3rd sub-sheath 43 is coated on described the second inner restrictive coating 11 outer surfaces;
Be provided with proof copper-wire braided screen 14 between the described the 3rd sub-sheath 43 and the first inner restrictive coating 11, both can not increase external diameter, can guarantee again the tractive effort of needs, thereby guaranteed the adhesive between the 3rd sub-sheath 43 and the first inner restrictive coating 11, played humidification, have very large tensile strength, also can eliminate or reduce the stress of cable when mobile or twisting states, the useful life of improving cable; Secondly, further strengthened interference free performance.
Described wire sheathing 6 and proof copper-wire braided screen 14 are electrically connected by some parallel plain conductors 13 alternately that are positioned at the second sub-sheath 42, the 3rd sub-sheath 43 and " people " font connecting portion 12, described adjacent 2 plain conductors 13 be spaced apart 2.4~3.7 times of conduction cable core 8 twisting pitch;
Described the first twisted wire is 15~15.5mm to 81 pitch, and described the second twisted wire is 13.5~13.9mm to 82 pitch, and described the 3rd twisted wire is 14.2~14.6mm to 83 pitch, and described the 4th twisted wire is 12.7~13.1mm to 84 pitch;
Adjacent segments apart from design formula is:
The pitch design of being separated by formula is:
H1 is the first twisted wire to 81 pitch, and h2 is the second twisted wire to the 82 or the 4th twisted wire to 84 pitch, and h3 is the 3rd twisted wire to 83 pitch.
Described the first twisted wire is 15.2mm to 81 pitch, and described the second twisted wire is 13.7mm to 82 pitch, and described the 3rd twisted wire is 14.4mm to 83 pitch, and described the 4th twisted wire is 12.9mm to 84 pitch.
Above-mentioned four twisted pair wire strands form conduction cable core 8, and these conduction cable core 8 twisting pitch are that the 4th twisted wire is to 9.8 times of 84 pitches.
Above-mentioned foil shielding layer 9 is comprised of laminated polyester film and the aluminium foil layer that is positioned at its medial surface, and described polyester film layer thickness is 0.020 ± 0.002mm, and described aluminium foil layer thickness is 0.014 ± 0.002mm; It is 120 ° that above-mentioned the first muscle section of company, second connects the adjacent angle of muscle section and the first muscle section of company; Above-mentioned steel conductor 1 and copper conductor 3 be annealed PROCESS FOR TREATMENT all.
Embodiment 2: a kind of compound data cable of low delay with water resistance comprises: steel conductor 1, coaxial conductor 2, eight copper conductor 3 and oversheath bodies 4 that are coated with polyethylene layer 31; Described coaxial conductor 2 outer surfaces are coated with plastic insulating layer 5, and these plastic insulating layer 5 outer surfaces are coated with wire sheathing 6, the first inner restrictive coatings 7 and are coated on described wire sheathing 6 outer surfaces;
Four pairs of in twos stranded formation of described eight copper conductors 3 are as the twisted wire of information communication pair, described four twisted pair wire centerings the first twisted wire is arranged in order 84 the 83 and the 4th twisted wire and stranded formation conduction cable core 8 the 82, the 3rd twisted wire counterclockwise to the 81, second twisted wire, the first twisted wire to the 81 and the 3rd twisted wire to the 83 and second twisted wire to the 82 and the 4th twisted wire to 84 alternately, described four twisted pair wires all are coated with foil shielding layer 9 to outer surface separately, one polyester belt 10 is wrapped in described foil shielding layer 9 outer surfaces, and the second inner restrictive coating 11 is coated on described polyester belt 10 outer surfaces;
Described oversheath body 4 comprises the first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43, this first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43 centers have one " people " font connecting portion 12, first of this " people " font connecting portion 12 connects muscle section 121, the second muscle section 122 of company and the 3rd connects muscle section 123 and is connected respectively to the described first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43, the first sub-sheath 41 is coated on described steel conductor 1 outer surface, the second sub-sheath 42 is coated on described the first inner restrictive coating 7 outer surfaces, and the 3rd sub-sheath 43 is coated on described the second inner restrictive coating 11 outer surfaces;
Be provided with proof copper-wire braided screen 14 between the described the 3rd sub-sheath 43 and the first inner restrictive coating 11, both can not increase external diameter, can guarantee again the tractive effort of needs, thereby guaranteed the adhesive between the 3rd sub-sheath 43 and the first inner restrictive coating 11, played humidification, have very large tensile strength, also can eliminate or reduce the stress of cable when mobile or twisting states, the useful life of improving cable; Secondly, further strengthened interference free performance.
Described wire sheathing 6 and proof copper-wire braided screen 14 are electrically connected by some parallel plain conductors 13 alternately that are positioned at the second sub-sheath 42, the 3rd sub-sheath 43 and " people " font connecting portion 12, described adjacent 2 plain conductors 13 be spaced apart 2.4~3.7 times of conduction cable core 8 twisting pitch;
Described the first twisted wire is 15.1mm to 81 pitch, and described the second twisted wire is 13.5mm to 82 pitch, and described the 3rd twisted wire is 14.3mm to 83 pitch, and described the 4th twisted wire is 12.8mm to 84 pitch;
Adjacent segments apart from design formula is:
The pitch design of being separated by formula is:
H1 is the first twisted wire to 81 pitch, and h2 is the second twisted wire to the 82 or the 4th twisted wire to 84 pitch, and h3 is the 3rd twisted wire to 83 pitch.
Above-mentioned four twisted pair wire strands form conduction cable core 8, and these conduction cable core 8 twisting pitch are that the 4th twisted wire is to 7.7 times of 84 pitches.
Foregoing is further described below.
The design of aluminum foil material
According to telecommunication cable standard and requirement, shielding is comprised of one deck single face clad aluminum foil and a drain wire, and the single face clad aluminum foil requires to see for details following table:
The specification requirement of single face clad aluminum foil
Weave copper wire material used design
According to telecommunication cable standard and requirement, the braided material of armour can be single circular copper wire or tin-plating round copper wire, allows unidirectional sub-thread broken string length to be not more than 150mm, and trimmed is answered in the broken string termination
The main performance index of finished cable
Conductor DC resistance (20 ℃) :≤96 Ω/km;
The characteristic impedance of paired cable (20 ℃): 100 ± 15 Ω;
The characteristic impedance of coaxial cable (20 ℃): 75 ± 15 Ω;
The insulation resistance of cable: 〉=10000M Ω km.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (7)
1. the compound data cable of low delay with water resistance is characterized in that: comprising: steel conductor (1), coaxial conductor (2), eight copper conductor (3) and oversheath bodies (4) that are coated with polyethylene layer (31); Described coaxial conductor (2) outer surface is coated with plastic insulating layer (5), and this plastic insulating layer (5) outer surface is coated with wire sheathing (6), and the first inner restrictive coating (7) is coated on described wire sheathing (6) outer surface;
Four pairs of in twos stranded formation of described eight copper conductors (3) are as the twisted wire of information communication pair, described four twisted pair wire centerings the first twisted wire is to (81), the second twisted wire is to (82), the 3rd twisted wire is to (83) and the 4th twisted wire is arranged in order counterclockwise to (84) and stranded formation conduction cable core (8), the first twisted wire to (81) and the 3rd twisted wire to (83) and the second twisted wire to (82) and the 4th twisted wire to (84) alternately, described four twisted pair wires all are coated with foil shielding layer (9) to outer surface separately, one polyester belt (10) is wrapped in described foil shielding layer (9) outer surface, and the second inner restrictive coating (11) is coated on described polyester belt (10) outer surface;
Described oversheath body (4) comprises the first sub-sheath (41), the second sub-sheath (42) and the 3rd sub-sheath (43), this first sub-sheath (41), the second sub-sheath (42) and the 3rd sub-sheath (43) center have one " people " font connecting portion (12), first of this " people " font connecting portion (12) connects muscle section (121), the second muscle section (122) of company and the 3rd connects muscle section (123) and is connected respectively to the described first sub-sheath (41), the second sub-sheath (42) and the 3rd sub-sheath (43), the first sub-sheath (41) is coated on described steel conductor (1) outer surface, the second sub-sheath (42) is coated on described the first inner restrictive coating (7) outer surface, and the 3rd sub-sheath (43) is coated on described the second inner restrictive coating (11) outer surface;
Described wire sheathing (6) is electrically connected by some parallel plain conductors (13) alternately that are positioned at the second sub-sheath (42), the 3rd sub-sheath (43) and " people " font connecting portion (12) with proof copper-wire braided screen (14);
Described the first twisted wire is 15~15.5mm to the pitch of (81), described the second twisted wire is 13.5~13.9mm to the pitch of (82), described the 3rd twisted wire is 14.2~14.6mm to the pitch of (83), and described the 4th twisted wire is 12.7~13.1mm to the pitch of (84);
Adjacent segments apart from design formula is:
The pitch design of being separated by formula is:
H1 be the first twisted wire to the pitch of (81), h2 is the second twisted wire to (82) or the 4th twisted wire pitch to (84), h3 is that the 3rd twisted wire is to the pitch of (83).
2. the compound data cable of low delay with water resistance according to claim 1, it is characterized in that: described the first twisted wire is 15.2mm to the pitch of (81), described the second twisted wire is 13.7mm to the pitch of (82), described the 3rd twisted wire is 14.4mm to the pitch of (83), and described the 4th twisted wire is 12.9mm to the pitch of (84).
3. the compound data cable of low delay with water resistance according to claim 1 is characterized in that: described adjacent 2 plain conductors (13) be spaced apart 2.4~3.7 times of conduction cable core (8) twisting pitch.
4. the compound data cable of low delay with water resistance according to claim 1 is characterized in that: described four twisted pair wire strands form conduction cable core (8), and this conduction cable core (8) twisting pitch is that the 4th twisted wire is to (84) 7.7~9.8 times.
5. each described compound data cable of low delay with water resistance according to claim 1~3, it is characterized in that: described foil shielding layer (9) is comprised of laminated polyester film and the aluminium foil layer that is positioned at its medial surface, described polyester film layer thickness is 0.020 ± 0.002mm, and described aluminium foil layer thickness is 0.014 ± 0.002mm.
6. each described compound data cable of low delay with water resistance according to claim 1~3 is characterized in that: it is 120 ° that described the first muscle section of company, second connects the adjacent angle of muscle section and the first muscle section of company.
7. each described compound data cable of low delay with water resistance according to claim 1~3, it is characterized in that: described steel conductor (1) and copper conductor (3) be annealed PROCESS FOR TREATMENT all.
Priority Applications (1)
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CN 201320163019 CN203242415U (en) | 2013-04-03 | 2013-04-03 | Low-delay compound-type data cable with waterproof performance |
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CN 201320163019 CN203242415U (en) | 2013-04-03 | 2013-04-03 | Low-delay compound-type data cable with waterproof performance |
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CN 201320163019 Expired - Lifetime CN203242415U (en) | 2013-04-03 | 2013-04-03 | Low-delay compound-type data cable with waterproof performance |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103236314A (en) * | 2013-04-03 | 2013-08-07 | 江苏亨通线缆科技有限公司 | Waterproof low-delay composite data cable |
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2013
- 2013-04-03 CN CN 201320163019 patent/CN203242415U/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103236314A (en) * | 2013-04-03 | 2013-08-07 | 江苏亨通线缆科技有限公司 | Waterproof low-delay composite data cable |
CN106169325A (en) * | 2013-04-03 | 2016-11-30 | 江苏亨通线缆科技有限公司 | Multicore pair twist data transmission cable |
CN103236314B (en) * | 2013-04-03 | 2017-02-08 | 江苏亨通线缆科技有限公司 | Waterproof low-delay composite communication cable |
CN106531345A (en) * | 2013-04-03 | 2017-03-22 | 江苏亨通线缆科技有限公司 | Multipurpose four-core twinning communication cable |
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